نتایج جستجو برای: tracheal necrosis
تعداد نتایج: 109829 فیلتر نتایج به سال:
Inhaled bacterial lipopolysaccharides (LPSs) induce an acute tumour necrosis factor-alpha (TNF-α-) dependent inflammatory response in the murine airways mediated by Toll-like receptor 4 (TLR4) via the myeloid differentiation MyD88 adaptor protein pathway. However, the contractile response of the bronchial smooth muscle and the role of endogenous TNFα in this process have been elusive. We determ...
Gamithromycin and tulathromycin are commonly used in the treatment of bovine respiratory bacterial diseases. The current work was undertaken to establish apoptotic, necrotic, cytotoxic effects these antibiotics target animal. Cells with apoptosis necrosis were determined by dual staining method, MTT assay, cell proliferative examined XCelligence real-time analysis system (RTCA-SP). comparison b...
Infectious bronchitis is caused by a coronavirus, infectious bronchitis virus (IBV). Infectious bronchitis is an acute and highly contagious disease of economic importance due to the reduction in weight gain observed with infected broilers and the drop in egg quality and production associated with infected laying hens. The presence of deep pectoral myopathy has been associated with IBV variants...
The carcinogenicity of nickel subsulfide, Ni3S2, for respiratory tract epithelium was studied in heterotopic tracheal transplants with doses of 1 and 3 mg Ni3S2 per trachea. Chemical determinations indicated that Ni3S2 persisted in the tracheas for seven to nine months. Ni3S2 showed marked toxicity for mucociliary epithelium, resulting in widespread atrophy and focal epithelial necrosis during ...
The tracheal epithelium prevents via its highly effective clearance mechanism the contamination of the lower airways by pathogens. This mechanism is driven by ciliary bearing cells which are not only in contact with the gas phase; in addition they are also influenced by inflammatory mediators. These mediators can alter the protective function of the epithelium. Since the pro-inflammatoric cytok...
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